Document that components are now bundled with the generated project

Document that components are now bundled with the genrated project.

Instead of fetching the components using git we bundle them in Dependecies.

This requires documentation.

The CMake project now contains a folder called Dependecies that contains the Qt Design Studio specific dependecies from https://codereview.qt-project.org/q/project:qt-labs/qtquickdesigner-components. These are Qt Design Studio specific QML components like the Studio Components containing the ArcItem for example the Design Effects.